Ventilator.



PATENTED JUNE 25, 1907.

A. HOLTZHEUER.

VEN TILATO R.

APPLICATION FILED 00m. 1906.

nv wen/7' w/ T VE E 0,, WASHINGTON, n. c.

AUGUST HOLTZHEUER, OF CASSEL, GERMANY.

VENTILATOR- Specification of Letters Patent.

Patented June 25, 1907.

Application filed October 9,1906. Serial No. 338,132.

To all whom it may concern:

Be it known that I, AUGUST HOLTZHEUER, engineer, a subjeotof the King of Prussia, residing at No. 30 Rotenditmolderstrasse, Cassel, German Empire, have invented .new and useful Improvements in Ventilators, of which the following is a specification.

The subject of my invention is a ventilator for conveyances of all kinds, such as railway cars.

The improved device consists of an assemblage of tubular sections jointed together and furnished with a wind vane at the top, and is adapted to be secured to the vehicle in such manner that when the latter is running the ventilator leans in the direction of the air current, and on reversal of the direction of motion of the vehicle the device automatic ally bends over in the opposite direction.

One form of the invention is illustrated in the accompanying drawing, in which Figure 1 is a sectional view of a portion of a railway car, the ventilator fixed thereon being shown in elevation. Fig. 2 is a part plan of Fig. 1.

The car I) has a box-shaped overhanging structure a, on which is secured the new ventilator 0, consisting of the tubular sections a jointed together at (1, so that the device can yield in two directions. The top section e is furnished with a wind vane f, located parallel with the axes of the joints (1.

When the car is running the ventilator will turn over in the direction of the air current acting on the vane f, so that the external air current cannot enter the interior of the ventilator, but exerts a suction action at the top aperture of the device and thus causes the air to be drawn out of the interior of the space to be ventilated. On change of the direction of travel of the vehicle, the air current acting upon the vane will cause the ventilator to reverse its position automatically.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is In combination with a car, a box shaped over-hanging structure thereon, a tubular portion connected to and communicating with the said structure, a second tubular portion having its lower end pivoted to the upper end of the first portion at two diametrically opposite points, a third portion pivoted to the second portion in a similar manner and a vane carried by the top portion.

In witness whereof I have hereunto signed my name this 20th day of September, 1906, in the presence of two subscribing witnesses.

AUGUST HOLTZHEUER.

Witnesses RUnoLF Fi'JRsTER, AUGUST 'KUNZ. 

